Patent Assignment
Reel/Frame 015504/0346
Assignment of Assignor's Interest
Recorded: 2004-12-22
Pages: 4
Assignee
BJ SERVICES COMPANY
5500 NORTHWEST CENTRAL DRIVE, HOUSTON, TEXAS, 77092
Covered Property
(1)
Downhole Oilfield Erosion Protection by Using Diamond
Related Assignments
(2)
Other recorded transfers of the patent in this record — the chain of ownership.